Would you like Roomba Batteries with twice the battery life cycle of the manufactures supplied battery? Have a look at RoombaExchange. Their Li-ion battery packs are 13% lighter than the iRobot batteries, has no "cell memory" issues, and each cell has is own PCB to protect against over charge, discharge and short circuits. These high quality battery packs will give you between 5% and 50% average runtime increase, cooler charging cycle and a Cooler operating temperature.

Can be charged with both the roomba Standard(black) and APS fast charger(Gray). Compatible with all 41XX and 42XX Discovery series models. Visit their web site to View Models

2550mAh Li-ion battery replacement for your Roomba. Runs cooler, lasts longer and extends the life of vulnerable internal components by reducing the overall weight load on your roomba by over 13%!

Can be charged with both the roomba Standard(black) and APS fast charger(Gray). Compatible with all 41XX and 42XX Discovery series models. Visit their web site to View Models